A new implicit finite difference algorithm of thermal melt flow for solving 3D incompressible viscous equations in filling process
In the SOLA-VOF method of Casting Simulation, an explicit difference method often is used for calculating 3D incompressible viscous equations in filling simulation. Because time steps are limited, the computational efficiency is slow. In this paper, an approximate factorization scheme of second-order difference has been developed for solving 3D incompressible viscous Equations. In near-wall region, thermal melt flow has character of non-Newtonian flow and low-Reynolds number exists, an incompressible viscous model of low-Reynolds number is introduced, the projection method is employed to calculate the velocity and the pressure fields. It is proved that the new implicit finite difference algorithm is correct through nonparametric statistics method and casting experiment. This new algorithm is more quickly that the explicit SOLA-VOF method.
NIU Xiao-feng LIANG Wei ZHAO Yu-hong HOU Hua
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Chin College of Materials Science and Engineering, North University of China, Taiyuan 030051, China
国际会议
桂林
英文
1-6
2010-11-16（万方平台首次上网日期，不代表论文的发表时间）